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Electrical Resistivity and Conductivity

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ISBN: 9789535131854 9789535131861 Year: Pages: 124 DOI: 10.5772/65130 Language: English
Publisher: IntechOpen
Subject: Electrical and Nuclear Engineering
Added to DOAB on : 2019-10-03 07:51:50

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Motivated by the importance of electrical resistivity and conductivity, important experts in this field grasp most recent researches in this book. It addresses recent advances in electrical resistivity and conductivity modelling, measurement, estimation and sensing methods and implications. This book introduces innovative case studies for ""Electrical Resistivity Sensing Methods and Implications"", ""Resistivity Model of Frozen Soil and High-Density Resistivity Method for Exploration of Discontinuous Permafrost"", ""Measurement of Electrical Resistivity for Unconventional Structures"", ""Estimation of Hydrological Parameters from Geoelectric Measurements"" and ""Assessment of Cryoprotectant Concentration by Electrical Conductivity Measurement and Its Applications in Cryopreservation"". These recent advances are well prepared and presented in six chapters. These chapters are carefully selected to reflect current variable techniques, new concepts and methods related to the book's topic from different perspectives.

Recent Developments on Power Inverters

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ISBN: 9789535132318 9789535132325 Year: Pages: 166 DOI: 10.5772/65189 Language: English
Publisher: IntechOpen
Subject: Electrical and Nuclear Engineering
Added to DOAB on : 2019-10-03 07:51:50

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This book develops some methods and structures to improve the power inverters for different applications in a single-phase or three-phase output in recent years. The reduction of the switching devices and multilevel inverters as changing structure for the power inverters and PDM and PWM methods as changing control methods for the power inverter are studied in this book. Moreover, power inverters are developed to supply open-ended loads. Furthermore, the basic and advanced aspects of the electric drives that are control based are taught for induction motor (IM) based on power inverters suitable for both undergraduate and postgraduate levels. The main objective of this book is to provide the necessary background to improve and implement the high-performance inverters. Once the material in this book has been mastered, the reader will be able to apply these improvements in the power inverters to his or her problems for high-performance power inverters.

Development and Integration of Microgrids

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ISBN: 9789535133995 9789535134008 Year: Pages: 284 DOI: 10.5772/65582 Language: English
Publisher: IntechOpen
Subject: Electrical and Nuclear Engineering
Added to DOAB on : 2019-10-03 07:51:50

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The utilization of AC or DC microgrids across the world has increased dramatically over the years and has led to development opportunities as well as technical challenges when they are connected to the main grids or used as stand-alone systems. This book overviews the development of AC/DC microgrids; explains the microgrid concepts, design and control considerations, discusses operational and technical issues, as well as interconnection and integration of these systems. This book is served as a reference for a general audience of researchers, academics, PhD students and practitioners in the field of power engineering.

Rational Fitting Techniques for the Modeling of Electric Power Components and Systems Using MATLAB Environment

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ISBN: 9789535136736 9789535136743 Year: Pages: 56 DOI: 10.5772/intechopen.71692 Language: English
Publisher: IntechOpen
Subject: Electrical and Nuclear Engineering
Added to DOAB on : 2019-10-03 07:51:50

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The rational fitting processes have become an essential component of electric power components and systems modelling. These techniques allow the inclusion of frequency-dependent effects in electric power systems modelling. There are several methods for carrying out this model synthesis. This book provides a detailed description of some of the most widely used rational fitting techniques for approximation of frequency domain responses. The techniques are Bode's asymptotic approximation, the Levy method, iteratively reweighted least squares, the Sanathanan-Koerner method, the Noda method, vector fitting, the Levenberg-Marquardt method and the damped Gauss-Newton method. Such models permit the inclusion of frequency dependence in the modelling of overhead transmission lines and underground cables, in power transformers at high frequencies and in frequency-dependent network equivalents (FDNE). A MATLAB routine for each technique is presented.

Electrical Power and Energy Systems for Transportation Applications

Authors: ---
ISBN: 9783038422426 9783038422075 Year: Pages: XX, 572 DOI: 10.3390/books978-3-03842-207-5 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Chemical Technology
Added to DOAB on : 2017-07-26 13:30:46
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Electrical power and energy systems are at the forefront of application developments in renewable energy, smart grids, electric aircrafts, electric and hybrid vehicles and much more. The associated technologies and control methods are crucial to achieving global targets in energy efficiency and low-carbon operations, and will also contribute to key areas such as energy security. The greatest challenges occur when we combine new technologies at large-scale and often complex system level. The Special Edition will cover theoretical developments with special emphasis on applications in electrical power and energy systems. Topics covered include:Renewable Energy Systems: Energy management; hybrid systems; distributed systems; renewable sources and integration; transient energy storage, charging networks.Electrical Machines, Drives and Applications: AC and DC machines and drives; multiscale systems modeling; remote monitoring and diagnosis; electric and hybrid vehicles; energy conversion, vehicle to grid interaction.Power Electronic Systems: Converters and emerging technologies; modeling simulation and control; power factor correction; power supplies; active filters; reliability and fault tolerance.Electrical Power Generation Systems: Modeling and simulation of electrical power systems; load management; power quality; distribution reliability; distributed and islanded power systems, sensor networks, communication and control.Electrical Power Systems Modeling and Control: Modeling and control methodologies and applications; intelligent systems; optimization and advanced heuristics; adaptive systems; robust control.

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